/* * Copyright (C) 2012 * Dale Weiler, Wolfgang Bumiller * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies * of the Software, and to permit persons to whom the Software is furnished to do * so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include "gmqcc.h" typedef struct { uint32_t offset; /* Offset in file of where data begins */ uint32_t length; /* Length of section (how many of) */ } prog_section; typedef struct { uint32_t version; /* Program version (6) */ uint16_t crc16; /* What is this? */ uint16_t skip; /* see propsal.txt */ prog_section statements; /* prog_section_statement */ prog_section defs; /* prog_section_def */ prog_section fields; /* prog_section_field */ prog_section functions; /* prog_section_function */ prog_section strings; /* What is this? */ prog_section globals; /* What is this? */ uint32_t entfield; /* Number of entity fields */ } prog_header; /* * The macros below expand to a typesafe vector implementation, which * can be viewed in gmqcc.h * * code_statements_data -- raw prog_section_statement array * code_statements_elements -- number of elements * code_statements_allocated -- size of the array allocated * code_statements_add(T) -- add element (returns -1 on error) * * code_vars_data -- raw prog_section_var array * code_vars_elements -- number of elements * code_vars_allocated -- size of the array allocated * code_vars_add(T) -- add element (returns -1 on error) * * code_fields_data -- raw prog_section_field array * code_fields_elements -- number of elements * code_fields_allocated -- size of the array allocated * code_fields_add(T) -- add element (returns -1 on error) * * code_functions_data -- raw prog_section_function array * code_functions_elements -- number of elements * code_functions_allocated -- size of the array allocated * code_functions_add(T) -- add element (returns -1 on error) * * code_globals_data -- raw prog_section_def array * code_globals_elements -- number of elements * code_globals_allocated -- size of the array allocated * code_globals_add(T) -- add element (returns -1 on error) * * code_chars_data -- raw char* array * code_chars_elements -- number of elements * code_chars_allocated -- size of the array allocated * code_chars_add(T) -- add element (returns -1 on error) */ VECTOR_MAKE(prog_section_statement, code_statements); VECTOR_MAKE(prog_section_def, code_defs ); VECTOR_MAKE(prog_section_field, code_fields ); VECTOR_MAKE(prog_section_function, code_functions ); VECTOR_MAKE(int, code_globals ); VECTOR_MAKE(char, code_chars ); void code_init() { prog_section_function empty_function = {0,0,0,0,0,0,0,{0}}; prog_section_statement empty_statement = {0,{0},{0},{0}}; int i = 0; /* omit creation of null code */ if (opts_omit_nullcode) return; /* * The way progs.dat is suppose to work is odd, there needs to be * some null (empty) statements, functions, and 28 globals */ for(; i < 28; i++) code_globals_add(0); code_chars_add ('\0'); code_functions_add (empty_function); code_statements_add(empty_statement); } uint32_t code_genstring(const char *str) { uint32_t off = code_chars_elements; while (*str) { code_chars_add(*str); ++str; } return off; } uint32_t code_cachedstring(const char *str) { size_t s = 0; /* We could implement knuth-morris-pratt or something * and also take substrings, but I'm uncomfortable with * pointing to subparts of strings for the sake of clarity... */ while (s < code_chars_elements) { if (!strcmp(str, code_chars_data + s)) return s; while (code_chars_data[s]) ++s; ++s; } return code_genstring(str); } void code_test() { prog_section_def d1 = { TYPE_VOID, 28, 1 }; prog_section_def d2 = { TYPE_FUNCTION, 29, 8 }; prog_section_def d3 = { TYPE_STRING, 30, 14}; prog_section_function f1 = { 1, 0, 0, 0, 1, 0,0, {0}}; prog_section_function f2 = {-4, 0, 0, 0, 8, 0,0, {0}}; prog_section_function f3 = { 0, 0, 0, 0, 14+13, 0,0, {0}}; prog_section_function f4 = { 0, 0, 0, 0, 14+13+10, 0,0, {0}}; prog_section_function f5 = { 0, 0, 0, 0, 14+13+10+7, 0,0, {0}}; prog_section_function f6 = { 0, 0, 0, 0, 14+13+10+7+9, 0,0, {0}}; prog_section_statement s1 = { INSTR_STORE_F, {30}, {OFS_PARM0}, {0}}; prog_section_statement s2 = { INSTR_CALL1, {29}, {0}, {0}}; prog_section_statement s3 = { INSTR_RETURN, {0}, {0}, {0}}; code_chars_put("m_init", 0x6); code_chars_put("print", 0x5); code_chars_put("hello world\n", 0xC); code_chars_put("m_keydown", 0x9); code_chars_put("m_draw", 0x6); code_chars_put("m_toggle", 0x8); code_chars_put("m_shutdown", 0xA); code_globals_add(1); /* m_init */ code_globals_add(2); /* print */ code_globals_add(14); /* hello world in string table */ /* now the defs */ code_defs_add (d1); /* m_init */ code_defs_add (d2); /* print */ code_defs_add (d3); /*hello_world*/ code_functions_add (f1); /* m_init */ code_functions_add (f2); /* print */ code_functions_add (f3); /* m_keydown */ code_functions_add (f4); code_functions_add (f5); code_functions_add (f6); code_statements_add(s1); code_statements_add(s2); code_statements_add(s3); } bool code_write(const char *filename) { prog_header code_header; FILE *fp = NULL; size_t it = 2; /* see proposal.txt */ if (opts_omit_nullcode) {} code_header.statements.offset = sizeof(prog_header); code_header.statements.length = code_statements_elements; code_header.defs.offset = code_header.statements.offset + (sizeof(prog_section_statement) * code_statements_elements); code_header.defs.length = code_defs_elements; code_header.fields.offset = code_header.defs.offset + (sizeof(prog_section_def) * code_defs_elements); code_header.fields.length = code_fields_elements; code_header.functions.offset = code_header.fields.offset + (sizeof(prog_section_field) * code_fields_elements); code_header.functions.length = code_functions_elements; code_header.globals.offset = code_header.functions.offset + (sizeof(prog_section_function) * code_functions_elements); code_header.globals.length = code_globals_elements; code_header.strings.offset = code_header.globals.offset + (sizeof(int32_t) * code_globals_elements); code_header.strings.length = code_chars_elements; code_header.version = 6; code_header.crc16 = 0; /* TODO: */ code_header.entfield = 0; /* TODO: */ if (opts_darkplaces_stringtablebug) { util_debug("GEN", "Patching stringtable for -fdarkplaces-stringtablebug\n"); /* >= + P */ code_chars_add('\0'); /* > */ code_chars_add('\0'); /* = */ code_chars_add('\0'); /* P */ } /* ensure all data is in LE format */ util_endianswap(&code_header, 1, sizeof(prog_header)); util_endianswap(code_statements_data, code_statements_elements, sizeof(prog_section_statement)); util_endianswap(code_defs_data, code_defs_elements, sizeof(prog_section_def)); util_endianswap(code_fields_data, code_fields_elements, sizeof(prog_section_field)); util_endianswap(code_functions_data, code_functions_elements, sizeof(prog_section_function)); util_endianswap(code_globals_data, code_globals_elements, sizeof(int32_t)); fp = fopen(filename, "wb"); if (!fp) return false; if (1 != fwrite(&code_header, sizeof(prog_header), 1, fp) || 1 != fwrite(code_statements_data, sizeof(prog_section_statement)*code_statements_elements, 1, fp) || 1 != fwrite(code_defs_data, sizeof(prog_section_def) *code_defs_elements, 1, fp) || 1 != fwrite(code_fields_data, sizeof(prog_section_field) *code_fields_elements, 1, fp) || 1 != fwrite(code_functions_data, sizeof(prog_section_function) *code_functions_elements, 1, fp) || 1 != fwrite(code_globals_data, sizeof(int32_t) *code_globals_elements, 1, fp) || 1 != fwrite(code_chars_data, 1 *code_chars_elements, 1, fp)) { fclose(fp); return false; } util_debug("GEN","HEADER:\n"); util_debug("GEN"," version: = %d\n", code_header.version ); util_debug("GEN"," crc16: = %d\n", code_header.crc16 ); util_debug("GEN"," entfield: = %d\n", code_header.entfield); util_debug("GEN"," statements = {.offset = % 8d, .length = % 8d}\n", code_header.statements.offset, code_header.statements.length); util_debug("GEN"," defs = {.offset = % 8d, .length = % 8d}\n", code_header.defs .offset, code_header.defs .length); util_debug("GEN"," fields = {.offset = % 8d, .length = % 8d}\n", code_header.fields .offset, code_header.fields .length); util_debug("GEN"," functions = {.offset = % 8d, .length = % 8d}\n", code_header.functions .offset, code_header.functions .length); util_debug("GEN"," globals = {.offset = % 8d, .length = % 8d}\n", code_header.globals .offset, code_header.globals .length); util_debug("GEN"," strings = {.offset = % 8d, .length = % 8d}\n", code_header.strings .offset, code_header.strings .length); /* FUNCTIONS */ util_debug("GEN", "FUNCTIONS:\n"); for (; it < code_functions_elements; it++) { size_t j = code_functions_data[it].entry; util_debug("GEN", " {.entry =% 5d, .firstlocal =% 5d, .locals =% 5d, .profile =% 5d, .name =% 5d, .file =% 5d, .nargs =% 5d, .argsize ={%d,%d,%d,%d,%d,%d,%d,%d} }\n", code_functions_data[it].entry, code_functions_data[it].firstlocal, code_functions_data[it].locals, code_functions_data[it].profile, code_functions_data[it].name, code_functions_data[it].file, code_functions_data[it].nargs, code_functions_data[it].argsize[0], code_functions_data[it].argsize[1], code_functions_data[it].argsize[2], code_functions_data[it].argsize[3], code_functions_data[it].argsize[4], code_functions_data[it].argsize[5], code_functions_data[it].argsize[6], code_functions_data[it].argsize[7] ); util_debug("GEN", " NAME: %s\n", &code_chars_data[code_functions_data[it].name]); /* Internal functions have no code */ if (code_functions_data[it].entry >= 0) { util_debug("GEN", " CODE:\n"); for (;;) { if (code_statements_data[j].opcode != AINSTR_END) util_debug("GEN", " %s {0x%05x,0x%05x,0x%05x}\n", asm_instr[code_statements_data[j].opcode].m, code_statements_data[j].o1.s1, code_statements_data[j].o2.s1, code_statements_data[j].o3.s1 ); else { util_debug("GEN", " DONE {0x00000,0x00000,0x00000}\n"); break; } j++; } } } mem_d(code_statements_data); mem_d(code_defs_data); mem_d(code_fields_data); mem_d(code_functions_data); mem_d(code_globals_data); mem_d(code_chars_data); fclose(fp); return true; }